WIRING OF MIC CABLE:Pin 1 Modulation Pin 2 RXPin 3 TX Pin 4 Down (UP with 22 KOhm Resistor)Pin 5 GroundPin 6 Power Supply +13.8VDCIt is same as President Wiring, but Up/Down functions will not function the same.

MICROPHONE WIRING:July 2014: Originally AE5890 and AE7500 had a different circuitry to detect the UP and DOWN keys of the microphone compared to the standard Albrecht Mic wiring.Therefore the standard Albrecht microphones always had to be modified to work on these two devices.In the meantime the AE5890 has been changed to Albrecht Mic standard. The AE7500 should follow from the next production.

This product was added to our website (or changed) on Tuesday 28 January 2014.

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